<template>
    <div>
         <a-calendar v-model: value="value">
            <template #dateCellRender="{ current: value }">
            <ul class="events">
                <li v-for="item in getListData(value)" :key="item.content">
                <a-badge :status="item.type" :text="item.content" />
                </li>
            </ul>
            </template>
            <template #monthCellRender="{ current: value }">
            <div v-if="getMonthData(value)" class="notes-month">
                <section>{{ getMonthData(value) }}</section>
                <span>Backlog number</span>
            </div>
            </template>
        </a-calendar>
    </div>
 
</template>
<script lang="ts">
import { defineComponent, ref } from 'vue';
import { Moment } from 'moment';

export default defineComponent({
  setup() {
    const value = ref<Moment>();

    const getListData = (value: Moment) => {
      let listData;
      switch (value.date()) {
        case 8:
          listData = [
            { type: 'warning', content: 'This is warning event.' },
            { type: 'success', content: 'This is usual event.' },
          ];
          break;
        case 10:
          listData = [
            { type: 'warning', content: 'This is warning event.' },
            { type: 'success', content: 'This is usual event.' },
            { type: 'error', content: 'This is error event.' },
          ];
          break;
        case 15:
          listData = [
            { type: 'warning', content: 'This is warning event' },
            { type: 'success', content: 'This is very long usual event。。....' },
            { type: 'error', content: 'This is error event 1.' },
            { type: 'error', content: 'This is error event 2.' },
            { type: 'error', content: 'This is error event 3.' },
            { type: 'error', content: 'This is error event 4.' },
          ];
          break;
        default:
      }
      return listData || [];
    };

    const getMonthData = (value: Moment) => {
      if (value.month() === 8) {
        return 1394;
      }
    };

    return {
      value,
      getListData,
      getMonthData,
    };
  },
});
</script>
<style scoped>
.events {
  list-style: none;
  margin: 0;
  padding: 0;
}
.events .ant-badge-status {
  overflow: hidden;
  white-space: nowrap;
  width: 100%;
  text-overflow: ellipsis;
  font-size: 12px;
}
.notes-month {
  text-align: center;
  font-size: 28px;
}
.notes-month section {
  font-size: 28px;
}
</style>
